Some applicants are being provided with alternative accommodation.
Families seeking to move to a midlands housing estate have been waiting over two years for the keys to their home.
Previous issues at the 10 social houses in Clonroosk Abbey, such as utility connections, have been resolved, and it's not known what's causing the latest delay.
Some of these homes have already been allocated and the applicants had to be provided with alternative accommodation.
Sinn Féin councillor Caroline Dwane Stanley says local authorities need to be resourced properly:
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